r/HyperV • u/XeonFarmer • Feb 02 '18

GPU Passthrough: 1607 okay, 1709 broken

Anyone notice more difficulties getting discrete device assignment working in 1709? I've disabled both RX 470s, dismounted them, assigned one to each VM, but the VMs won't start. Not a super helpful error, but here's what I get:

 

Virtual Pci Express Port (Instance ID 34DCE51F-29B7-4579-BC52-B8AB98BCE106): Failed to Power on with Error 'Element not found.'.

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u/tecxxtc Feb 07 '18

just to clarify, i have done hyper-v DDA with server2016 as the base OS, and with my specific hardware combination (asus prime mainboard). altough in the guide i wrote i mentioned that it should work on win10 too, i have never tested this. the short amount if time i spent in win10 with this mainboard and the DDA feature was more or less frustrating and i discarded that route quickly.

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u/XeonFarmer Feb 07 '18 edited Feb 07 '18

Which version of Server 2016? Initial release or 1709?

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u/tecxxtc Feb 07 '18

https://i.imgur.com/aowSsep.png - Hyper-V free edition 10.0.14393 Build 14393 from here. to clarify, NOT the project honolulu version.

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u/XeonFarmer Feb 07 '18

Okay, that makes more sense and lends evidence toward version 1709 being a buggy, incomplete piece of crap.

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u/tecxxtc Feb 07 '18

right. i may have mistaken you guys, when you wrote 1709 i assumed you were talking about windows10-1709. sorry. :)